I went to buy some ISA the other day and found that there were two different concentrations available - 76% and 91% (may be slightly off on the %'s). Two questions - which one is recommended for checking swirl removal and does it need to be diluted before applying to an area?

Thanks.

I may have screwed up my 1999 Corvette So I obviously did not read the threads enough before going to work on my car. I decided I wanted to take the swirl marks, and scratches out on my 1999 Navy Blue Mettalic Corvette. I bought it this summer and it just doesn't look good in the sun. I have a pc ...

M83 rocks with a rotary! What next? I got up the guts to use a Makita rotory for the first time. my first project was a black Honda with a lot of deep scratches, scuffs, bird droppings, love bugs, car wash swirls - no practice panel. I used 2000 grit paper for the deep scratches and had intend...

Worried the Dealership instill Swirls into my new paint job? I recently took my "07 black Lexus to dealer for it's first regular maintenance service. When I got the car back there were several deep scratches on the hood and front fenders. I was furious and immediately brought this to the service man...